Prominent mystery writers join forces with their wives to create a collection of nuptial-flavored mystery and suspense tales, with contributions by the likes of Lawrence and Lynne Block, Max Allan and Barbara Collins, John and Rachel Jakes, and John and Barbara Lutz
Various is the correct author for any book with multiple unknown authors, and is acceptable for books with multiple known authors, especially if not all are known or the list is very long (over 50).
If an editor is known, however, Various is not necessary. List the name of the editor as the primary author (with role "editor"). Contributing authors' names follow it.
Note: WorldCat is an excellent resource for finding author information and contents of anthologies.
Good collection of short stories from various authors and their spouses (not all of whom are authors themselves). As with any collection there were some that I enjoyed more than others but overall I liked more than I disliked.